App Designer: plot on Axes out of function

Hi everyone,

I created a GUI in App Designer with an Axes-Object on it. Now I want to enter some values via different buutons/slider etc., calculate some stuff and then plot my results on this Axes-Object.

I made a function as m-file which I call to draw/plot all the stuff I want. This is how I call the function:

drawFunction(Data, app.Axes);

In drawFunction I call

function drawFunction(Data, Axes)
axes(Axes)
... % plot stuff

But all the plots I call are drawn to a new figure which opens and not to my Axes on the GUI. Where is my mistake?

[Mohammad Sami]

Maybe its the line

axes(Axes).

You can directly specify the axes to plot in most plotting functions as the first argument.

plot(Axes,1:10,1:10);

Answer 1

[Mario Malic]

In App Designer, those are uiaxes.

In the plot function, you can specify axes to plot to

plot(Axes, 1, 1, 'kd')

[Dominik Müller]

plot(Axes,x,y)

this works fine.

But I have also objects I calculate, like some boxes which should be filled with a special color etc.

Looks something like this:

%calculation
plot(Axes,x,y)
hold on
%calculation
fill(Axes,x,y)
...

The code works fine and the figure it creates is just what I want so see. But if I add the Axes to every single command which draws/plots something, the result looks bad. With every plotted item I add to my Axes, all recently plotted stuff get's hidden. The result is not longer what it should be.

[Mario Malic]

In your hold on, specify Axes.

hold(Axes, 'on')

[Dominik Müller]

That's it!!!!! Thank you!!!

[Dominik Müller]

I wonder if there's a more elgant way to solve this problem by defining the axes at the beginning of the function and then continuously plot on it instead of defining the axes in every single plot command?!

It works fine the way it is right now, but what if I have an old function with lots of plot commands I want to include to a gui?

[Mario Malic]

I doubt so, gca does not accept uiaxes, you can replace your 'plot(' by 'plot(ax,' by using Find option (Ctrl+F).

This is worth of a question (if it's not asked already), so maybe someone else will have an idea how to do it.

[Dominik Müller]

I started a new question on it.

https://www.mathworks.com/matlabcentral/answers/608241-set-uiaxes-in-matlab-function-as-current-figure-to-plot-on